Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

BIG SHEEP MOUNTAIN (LCFM8)

Lat: 47.02819°NLon: 105.80472°WElev: 3172.0ft.

NA

66°F

19°C

Humidity 51%
Wind Speed WNW 17 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 08 Aug 06:08 PM MDT
Extended Forecast for

Brockway MT

Lake Wind Advisory August 8, 06:26pm until August 9, 09:00pm
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory August 8, 06:26pm until August 9, 09:00pm

    NOW until 9:00pm Sat

    Lake Wind Advisory

  • Tonight

    Low: 55 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 71. Breezy, with a west wind 22 to 25 mph, with gusts as high as 36 mph.  Chance of precipitation is 40%.

    High: 71 °F

    Breezy.
    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. West northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. West southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. West northwest wind 5 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming northwest 5 to 7 mph in the morning.

    High: 87 °F

    Sunny

Detailed Forecast

Tonight
A slight chance of showers before midnight, then a chance of showers after 1am. Increasing clouds, with a low around 55. West wind 15 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 40%.
Saturday
A chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 71. Breezy, with a west wind 22 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 53. West northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 26 mph.
Sunday
Sunny, with a high near 81. West southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 57. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 83. West northwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 87. Calm wind becoming northwest 5 to 7 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 60. North wind 6 to 8 mph becoming south southeast after midnight.
Wednesday
Sunny, with a high near 88. South southeast wind 6 to 8 mph becoming southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 61. North wind 6 to 8 mph becoming east southeast after midnight.
Thursday
Sunny, with a high near 89.
Thursday Night
A chance of showers. Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 83.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Brockway MT
 47.3°N 105.76°W (Elev. 2589 ft)
1:48 pm MDT Aug 8, 2025
6pm MDT Aug 8, 2025-6pm MDT Aug 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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